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  • Exos Pro 55L Backpack
  • Exos Pro 55L Backpack
  • Exos Pro 55L Backpack
  • Exos Pro 55L Backpack
  • Exos Pro 55L Backpack
  • Exos Pro 55L Backpack
  • Exos Pro 55L Backpack
  • Exos Pro 55L Backpack

Exos Pro 55L Backpack

Exos Pro 55L Backpack
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Why We Like The Osprey Exos Pro 55L Backpack

To optimize weight and comfort for our longest through-hikes, Osprey fine-tuned the Exos to make the Exos Pro 55L Backpack. This ultralight design sheds nearly a pound off the original and a few more ounces when the lid is removed. Supportive details from the inside out allow us to manage a week's load and adjust capacity, balance, and organization as needed.


Osprey's comfort-focused carrying system starts with their AirSpeed suspension. This tensioned-mesh back panel offers a supportive fit and provides plenty of space between our backs and the pack for cool airflow on our longest hikes. Silicone print at the lumbar helps the hip belt grip more steadily, so the dynamic foam belt can stretch and move with our hips without slipping up our backs. Spacer mesh shoulder straps are ventilated as well, keeping air moving all around our torsos.


Details

  • Optimized and ultralight through-hiking backpack
  • 55-liter capacity can hold up to 30 pounds of equipment
  • Tensioned mesh back panel lifts load for better airflow and load balance
  • ExoForm harness and hip belt use EVA foam for dynamic fit and padding
  • Removable lid sheds weight and reduces capacity for lighter trips
  • FlapJacket covers top access when lid is removed
  • Internal and external compression straps stabilize load
  • Webbing lash points, compression pockets, and ice axe loops secure additional equipment
  • Item #OSPZ1GA
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Tech Specs
Responsible Collection
[accent, bottom] bluesign® APPROVED, Recycled/Repurposed
Material
[face fabric] NanoFly (100D nylon x 200D UHMWPE), PFAS-free DWR treatment, [accent] 210D recycled high-tenacity nylon, PFAS-free DWR treatment, [bottom] NanoFly (100D nylon x 200D UHMWPE), PFAS-free DWR treatment
Volume
[small/medium] (with top lid) 55L (3356cu in), (without top lid) 46L (2807cu in), [large/x-large] (with top lid) 58L (3539cu in), (without top lid) 49L (2990cu in)
Support/Suspension
AirSpeed (injection-molded ladder), LightWire frame, 3D-tensioned mesh back panel, silicone lumbar print
Shoulder Straps
ExoForm (reverse spacer mesh, die-cut EVA, 3D mesh), adjustable sternum strap (with whistle buckle)
Waist Belt
EVA foam
Hydration Compatible
yes, internal hydration sleeve (with hose port and Osprey Hydraclip)
Reservoir Included
no
Access
top
Pockets
1 zippered lid (removable), 1 compression front, 2 dual-access stretch mesh side, 1 zippered hip belt, 1 drop-in hip belt
Gear Loops
multiple front panel lash points
Ice Axe Carry
2 attachment points
Compression
dual side straps, internal straps
Weight Capacity
10 - 30lb
Dimensions
[small/medium] 28.35 x 3 x 12.2in, [large/x-large] 30.31 x 14.96 x 12.2in
Claimed Weight
[small/medium] (with top lid) 2lb 1.2oz, (without top lid) 1lb 14.6oz, [large/x-large] (with top lid) 2lb 2.6oz, (without top lid) 2lb
Activity
backpacking, ultralight backpacking
Manufacturer Warranty
lifetime